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A @uiten tatrs gatent @fitta SAMUEL J. SEELY, OF NEW YORK, ASSIGNOR TO J. M. BROWN, OF BROOKLYN, NEWYORK.

Letters Patent No. 74,155, dated February 4, 1868.

fitte dnhule referat in in time ttttens @anni tnt mating etti. nt its time.

'.IO ALL WHOM IT MAY CONOERN:

Be it known that I, SAMUEL J. SEELY, of the city, county, and State of New York, have inventeda new and useful Improvement in Folding Metal Shutters, ot' which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which make part of this specification, and in which-- Figure 1 represents a vertically-hung folding metal shutter of my invention, opened and fastened over a. wlndoW.

Figure 2 represents the same shutter partially folded into a recess on one side ofthe window.

Figure 3 represents my shutter open and suspended from the top over the window.

Figure 4 represents the same shutter partially raised.

Figure 5 represents a. plan view of a singlevleaf of the shutter.

Figure 6, a crossfsection, on the lines ab n: of figs. 1 and 3; and

Figure 7, a cross-section of the single leaf.

Plane-leafed metal shutters, if made light, are deficient in strength, and-if madelstrong, they are` neces Ysarily inconveniently heavy, and quite expensive; 4andizuoreover, whether made light vor heavy, they are liable to warp or bend in the leaves from heat or hard usage; and it is, besides, quite diicult to repair them when a leaf is worn or injured. It is, therefore, the object of my invention 'to so form the separate leaves of folding shutters as to render the shutter light, strong, durable, and easily adaptable, to all positions` where shutters are required; to which end my invention consists'in forming folding metal shutters of leaves, which are curved transversely in lines that will permit them to be closely folded together, whether inited by a hinge over the whole length of the blade, or by strap-hinges placed at intervals upon the blades, land that admitthe shutters to be hung vertically to one or both sides, suspended from above, or dropped below the opening to be covered, and shall, when opened, present a waved ornamental surface.

In the example shown in this specification, I form the shutter A of any suitable sheet-metal leavesa, curved transversely in the arc of a circle, as shown 4in `figs. 6 and 7, by a proper die,lorrupon a former; one edge of the leaf being flattened for a short distance, and bent slightly in, to lit closely upon the adjoining ,leafH to which it is hinged. I do .not limit myself, however, to, any particular form' of curve, so long as it is such as that one leaf will fold closely uponthe leaf next to it, and will admit of the leaves, when united 4in a shutter, tobe folded closely together, as in figs. 2 and 4, and when opened to permit the most prominent points on the convex side of the leaves to be in a straight line, as in g. 6. Such curved leaves may be united one to the other by strap-hingcs c, or the edges may be so turned, cut, and brought together upon a rod as to fom a continuous hinge for each leaf. vLeaf is added to leaf in numbers sufficient to form a shutter ofthe-desired capacity for coveringany proposed opening; and the leaves may be of any desired width, and ofproper length, to form single or double doors or shutters for covering openings in buildings, entrances to cellars, or hatches of ships'. When strap-hinges are used they should be placed in straight lines across the shutter, fo;` symmetry,

and when the continuous hinge is used, if properly formed, it will make an' extremely neat/nish. This shutter may be hung vertically, as shown in Iig. 1, when a guide-stript, can be placed above the shutter, distant from the inside edge of the cap far enough to permit the shutter to fold within the space between the guide-strip and cap; and if the window is so wide as-to strain the hingeswhen opened, one or more of. the forward leaves may rest on friction-rollers, which will prevent there being any strain upon the hinges, and the shutters cannot sag. When the shutter is hung vertically, it can be folded into any properly-formed rece'ss, as shown at B in fig. 2. When hung at the top it can be drawn up in folds, asat C, in iig. 4, or it will admit of being depressed beneath the window, and in either position will occupy little more space than the thickness Vof the leaves.

It is obvious that the leaves of my shutter may be painted, enamelled, gilded, or ornamented in any style desired, and that the shutter is capable of being used with advantage, as either an inside or outside shutter. From the form of the leaves my shutter derives strength, thoughmade of light materials, and the leaves can hardly be warped by heat out of their proper form; besides which, they c an'be readily and economically applied to any openings where a. recess can be placed on its top, bc'1j:i:om,oi` sides.

v Whatl claim as my'invention, and desire to secure by Letters Ptent, is

lForming sbeebmetnl shutters of leaves, bent in curvedy form, transversely, and united substantially as and for the purpose set frth.

In testimony whereof, I have hereunto subscribed my name. A* SAML. J. SEELY. Witnesses:

LYDIA A. S'EELY, Cris. E. BROWN. 

